lobectomy

DEFINITION of lobectomy

lobectomy is the surgical excision of one complete anatomical lobe of a lobed organ, most commonly a lung lobe but also a thyroid or hepatic lobe. It is an anatomic resection, meaning the surgeon removes tissue along an organ’s natural segmental anatomy while controlling its vessels, ducts, or bronchi. It differs from wedge resection, which is a smaller nonanatomic excision, and from pneumonectomy, which removes an entire lung. A lobectomy is never a physiological process; it is an operative treatment whose indication may be benign, indeterminate, functional, or malignant. In coding, the term itself does not supply an ICD-10-CM diagnosis: pulmonary examples include a documented lobe-specific primary malignancy such as C34.11, C34.12, C34.31, or C34.32, whereas thyroid and hepatic indications are coded from the underlying disease. ^1,2,3

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ETYMOLOGY of lobectomy

greek

Component	Origin	Meaning
lob-	Greek λοβός (lobós)	“lobe,” a rounded or projecting part; the anatomical unit removed in the procedure
-ectomy	Greek ἐκτομή (ektomḗ), from ἐκ- (ek, “out”) + τέμνειν (témnein, “to cut”)	Noun-forming surgical suffix meaning “cutting out” or “excision”

The noun lobectomy is attested in English by 1911, formed in International Scientific Vocabulary from lobe plus -ectomy. The word lobe passed through Middle French lobe and Late Latin lobus from Greek lobós, while -ectomy expresses removal by cutting out. The root appears in lobule, lobular, and lobotomy; the surgical suffix appears in appendectomy, thyroidectomy, and pneumonectomy.

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ALIASES / ALTERNATE TERMS

• Pulmonary lobectomy (removal of one lung lobe; the default meaning of “lobectomy” in thoracic surgery)
• Lung lobectomy (clinical synonym for pulmonary lobectomy; may be performed through an open or thoracoscopic approach)
• Lobar resection (umbrella surgical descriptor; confirm the organ, extent, and approach before selecting a procedure code)
• Hemithyroidectomy (removal of one thyroid lobe, often with the isthmus; also called thyroid lobectomy)
• Hepatic lobectomy (resection of a right or left hepatic lobe; a form of hepatectomy)

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🔗 RELATED TERMS

• Segmentectomy — an anatomic resection smaller than a lobectomy; in the lung, it removes a bronchopulmonary segment rather than a complete lobe.
• Wedge resection — a nonanatomic, limited excision of a lesion with surrounding tissue; it does not follow the full lobe’s anatomy.
• pneumonectomy — removal of an entire lung, making it more extensive than a pulmonary lobectomy.
• Hemithyroidectomy — unilateral removal of thyroid tissue; often used interchangeably with thyroid lobectomy when an entire lobe is removed.
• Hepatectomy — a broader term for liver resection that can include partial, segmental, lobar, or more extensive removal.
• Lymphadenectomy — surgical removal of lymph nodes, which may be separately performed for staging or treatment during oncologic pulmonary surgery.
• Bronchoscopy — endoscopic examination of the airways that may help evaluate a pulmonary lesion before definitive resection.

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CODING CORNER

🏥 ICD-10-CM CODES

Pulmonary Indications and Postprocedural Status

Code	Description
C34.10	Malignant neoplasm of upper lobe, unspecified bronchus or lung
C34.11	Malignant neoplasm of upper lobe, right bronchus or lung
C34.12	Malignant neoplasm of upper lobe, left bronchus or lung
C34.2	Malignant neoplasm of middle lobe, bronchus or lung
C34.30	Malignant neoplasm of lower lobe, unspecified bronchus or lung
C34.31	Malignant neoplasm of lower lobe, right bronchus or lung
C34.32	Malignant neoplasm of lower lobe, left bronchus or lung
D38.1	Neoplasm of uncertain behavior of trachea, bronchus and lung
R91.1	Solitary pulmonary nodule
Z90.2	Acquired absence of lung - [part of]

Thyroid Indications and Documented Postprocedural Condition

Code	Description
E04.1	Nontoxic single thyroid nodule
E05.10	Thyrotoxicosis with toxic single thyroid nodule without thyrotoxic crisis or storm
E05.11	Thyrotoxicosis with toxic single thyroid nodule with thyrotoxic crisis or storm
D34	Benign neoplasm of thyroid gland
C73	Malignant neoplasm of thyroid gland
E89.0	Postprocedural hypothyroidism

Hepatic Indications

Code	Description
C22.0	Liver cell carcinoma
C22.7	Other specified carcinomas of liver
C78.7	Secondary malignant neoplasm of liver and intrahepatic bile duct
D13.4	Benign neoplasm of liver
D37.6	Neoplasm of uncertain behavior of liver, gallbladder and bile ducts

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🔧 COMMON CPT CODES (Lobectomy-Related Procedures)

Pulmonary Lobectomy

CPT Code	Description
32480	Open removal of a single lung lobe (lobectomy)
32482	Open removal of two lung lobes (bilobectomy)
32486	Open sleeve lobectomy with bronchoplastic reconstruction
32663	Surgical thoracoscopic removal of a single lung lobe (VATS lobectomy)
32674	Add-on thoracoscopic mediastinal and regional lymphadenectomy; report only with a qualifying primary thoracoscopic procedure when separately documented

Thyroid Lobectomy

CPT Code	Description
60210	Partial unilateral thyroid lobectomy, with or without isthmusectomy
60220	Complete unilateral thyroid lobectomy, with or without isthmusectomy

Hepatic Lobectomy

CPT Code	Description
47120	Partial hepatic lobectomy
47125	Left hepatic lobectomy
47130	Right hepatic lobectomy

Modifier Considerations

Modifier	Appropriate use
-RT	May identify the right-sided pulmonary service when required and accepted by the payer; it does not replace lobe-specific documentation
-LT	May identify the left-sided pulmonary service when required and accepted by the payer; it does not replace lobe-specific documentation
-59	Use only when documentation supports a distinct procedural service and the applicable edit permits the modifier
-XU	Use, when payer policy accepts it, to identify an unusual non-overlapping service that is distinct from the usual components of the primary service

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⚠️ Coding Note: Lobectomy does not establish a diagnosis; on professional claims, report the condition chiefly responsible for the service and capture the documented organ, lobe, laterality, behavior, and metastatic site. For a current primary pulmonary malignancy, documentation such as “right upper-lobe carcinoma” or “left lower-lobe primary” supports a complete lobe- and side-specific code such as C34.11, C34.12, C34.31, or C34.32; a record stating only “lung cancer” warrants clarification rather than assumed specificity. A lesion documented only as a solitary pulmonary nodule is coded R91.1 unless the provider establishes a more definitive diagnosis. Select one procedure code that reflects the documented organ, extent, and approach; do not report 32480 and 32663 for the same pulmonary lobectomy, and report 32674 only when a separately documented thoracoscopic mediastinal and regional lymphadenectomy accompanies a qualifying primary procedure. Use 59 or -XU only when documentation and the applicable NCCI edit substantiate a distinct service, and append -RT or -LT only when payer policy calls for pulmonary laterality; for hospital inpatient facility procedure reporting, the applicable procedure code set is separate from ICD-10-CM and CPT.

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DERIVATIONS of lobectomy

TABLE definition AS Definition
FROM #medterm 
WHERE length(filter(roots, (word) => econtains([[lobectomy]].roots, word))) > 0 AND file.name != [[lobectomy]].file.name
SORT file.name ASC

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Query functionality

TABLE definition AS Definition
FROM #medterm 
WHERE file.name != this.file.name
AND any(contains(this.definition, definition))

Med terms dictionary Appendix A Prefixes Appendix B Combining Forms Appendix C Suffixes Appendix D Suffix forms